<?php

/**

 * Smarty Internal Plugin Compile Modifier

 * Compiles code for modifier execution

 *

 * @package    Smarty

 * @subpackage Compiler

 * @author     Uwe Tews

 */

/**

 * Smarty Internal Plugin Compile Modifier Class

 *

 * @package    Smarty

 * @subpackage Compiler

 */

class Smarty_Internal_Compile_Private_Modifier extends Smarty_Internal_CompileBase {

    /**

     * Compiles code for modifier execution

     *

     * @param  array $args array with attributes from parser

     * @param  object $compiler compiler object

     * @param  array $parameter array with compilation parameter

     *

     * @return string compiled code

     */

    public function compile($args, $compiler, $parameter) {

        // check and get attributes

        $_attr = $this->getAttributes($compiler, $args);

        $output = $parameter['value'];

        // loop over list of modifiers

        foreach ($parameter['modifierlist'] as $single_modifier) {

            $modifier = $single_modifier[0];

            $single_modifier[0] = $output;

            $params = implode(',', $single_modifier);

            // check if we know already the type of modifier

            if (isset($compiler->known_modifier_type[$modifier])) {

                $modifier_types = array($compiler->known_modifier_type[$modifier]);

            } else {

                $modifier_types = array(1, 2, 3, 4, 5, 6);

            }

            foreach ($modifier_types as $type) {

                switch ($type) {

                    case 1:

                        // registered modifier

                        if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][$modifier])) {

                            $function = $compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][$modifier][0];

                            if (!is_array($function)) {

                                $output = "{$function}({$params})";

                            } else {

                                if (is_object($function[0])) {

                                    $output = '$_smarty_tpl->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][\'' . $modifier . '\'][0][0]->' . $function[1] . '(' . $params . ')';

                                } else {

                                    $output = $function[0] . '::' . $function[1] . '(' . $params . ')';

                                }

                            }

                            $compiler->known_modifier_type[$modifier] = $type;

                            break 2;

                        }

                        break;

                    case 2:

                        // registered modifier compiler

                        if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIERCOMPILER][$modifier][0])) {

                            $output = call_user_func($compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIERCOMPILER][$modifier][0], $single_modifier, $compiler->smarty);

                            $compiler->known_modifier_type[$modifier] = $type;

                            break 2;

                        }

                        break;

                    case 3:

                        // modifiercompiler plugin

                        if ($compiler->smarty->loadPlugin('smarty_modifiercompiler_' . $modifier)) {

                            // check if modifier allowed

                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedModifier($modifier, $compiler)) {

                                $plugin = 'smarty_modifiercompiler_' . $modifier;

                                $output = $plugin($single_modifier, $compiler);

                            }

                            $compiler->known_modifier_type[$modifier] = $type;

                            break 2;

                        }

                        break;

                    case 4:

                        // modifier plugin

                        if ($function = $compiler->getPlugin($modifier, Smarty::PLUGIN_MODIFIER)) {

                            // check if modifier allowed

                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedModifier($modifier, $compiler)) {

                                $output = "{$function}({$params})";

                            }

                            $compiler->known_modifier_type[$modifier] = $type;

                            break 2;

                        }

                        break;

                    case 5:

                        // PHP function

                        if (is_callable($modifier)) {

                            // check if modifier allowed

                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedPhpModifier($modifier, $compiler)) {

                                $output = "{$modifier}({$params})";

                            }

                            $compiler->known_modifier_type[$modifier] = $type;

                            break 2;

                        }

                        break;

                    case 6:

                        // default plugin handler

                        if (isset($compiler->default_handler_plugins[Smarty::PLUGIN_MODIFIER][$modifier]) || (is_callable($compiler->smarty->default_plugin_handler_func) && $compiler->getPluginFromDefaultHandler($modifier, Smarty::PLUGIN_MODIFIER))) {

                            $function = $compiler->default_handler_plugins[Smarty::PLUGIN_MODIFIER][$modifier][0];

                            // check if modifier allowed

                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedModifier($modifier, $compiler)) {

                                if (!is_array($function)) {

                                    $output = "{$function}({$params})";

                                } else {

                                    if (is_object($function[0])) {

                                        $output = '$_smarty_tpl->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][\'' . $modifier . '\'][0][0]->' . $function[1] . '(' . $params . ')';

                                    } else {

                                        $output = $function[0] . '::' . $function[1] . '(' . $params . ')';

                                    }

                                }

                            }

                            if (isset($compiler->template->required_plugins['nocache'][$modifier][Smarty::PLUGIN_MODIFIER]['file']) || isset($compiler->template->required_plugins['compiled'][$modifier][Smarty::PLUGIN_MODIFIER]['file'])) {

                                // was a plugin

                                $compiler->known_modifier_type[$modifier] = 4;

                            } else {

                                $compiler->known_modifier_type[$modifier] = $type;

                            }

                            break 2;

                        }

                }

            }

            if (!isset($compiler->known_modifier_type[$modifier])) {

                $compiler->trigger_template_error("unknown modifier \"" . $modifier . "\"", $compiler->lex->taglineno);

            }

        }

        return $output;

    }

}